Changes in Resting Metabolic Rate Following Orthopedic Surgery

Last updated: July 8, 2025
Sponsor: University of Kansas Medical Center
Overall Status: Active - Recruiting

Phase

N/A

Condition

Metabolic Disorders

Treatment

Post-surgical nutrition, hydration, RMR and body composition assessments

Pre-surgical nutrition, hydration, RMR, and body composition assessments

Clinical Study ID

NCT06107959
STUDY00150689
  • Ages > 15
  • All Genders

Study Summary

This project is intended to determine the magnitude and duration of RMR changes in patients receiving orthopedic surgery. The result will help to guide postoperative nutrition recommendations in patients receiving orthopedic surgery.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Any individual over 15 undergoing an orthopedic surgery.

Exclusion

Exclusion Criteria:

  • Pregnant female

  • < 15 years old

Study Design

Total Participants: 100
Treatment Group(s): 2
Primary Treatment: Post-surgical nutrition, hydration, RMR and body composition assessments
Phase:
Study Start date:
October 10, 2023
Estimated Completion Date:
December 31, 2026

Study Description

Surgery produces a catabolic response in the body that shifts metabolism from glucose to fat and protein. Despite no studies examining ACLR, studies of other orthopedic surgeries demonstrate increased postoperative energy expenditure, as well as a shift to beta-oxidation. Additionally, in most patients, these changes reverted to baseline within six weeks, although a subset of patients did not return to baseline until beyond 12 weeks.

This project will improve our understanding of magnitude and duration of RMR changes following orthopedic surgery, and the subsequent perioperative dietary suggestions that should be made to improve patient outcomes. Currently, postoperative dietary suggestions are not surgery nor patient specific. Determining how orthopedic surgery effects RMR will help to personalize perioperative treatment, rehabilitation, and recovery.

Better understanding the change in RMR following orthopedic surgery and implementing more accurate dietary modifications will help to ensure positive outcomes and control of infection following orthopedic surgery.

Connect with a study center

  • The University of Kansas Medical Center

    Kansas City, Kansas 66160
    United States

    Active - Recruiting

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